The Atlantis expedition team, led by Dr. Elizabeth Weir, arrives in the Pegasus Galaxy and discovers the lost city of Atlantis. They encounter a powerful new enemy, the Wraith, and face various challenges to protect their new home while exploring the galaxy and seeking new allies.

Season 1 Episode 1 - Rising (1)

A new Stargate team embarks on a dangerous mission to a distant galaxy, where they discover a mythical lost city -- and a deadly new enemy. Air Date : 15th-Jul-2004  Read More

Season 1 Episode 2 - Rising (2)

Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith. Air Date : 15th-Jul-2004  Read More

Season 1 Episode 3 - Hide and Seek

The Atlantis base is threatened when the team discovers that an alien entity is in the city. McKay's experiment with alien technology goes awry. Air Date : 23rd-Jul-2004  Read More

Season 1 Episode 4 - Thirty Eight Minutes

The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate. Air Date : 30th-Jul-2004  Read More

Season 1 Episode 5 - Suspicion

After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst. Air Date : 6th-Aug-2004  Read More

Season 1 Episode 6 - Childhood's End

Sheppard and the team visit a world where no one is over 24 years old -- because of a ritual suicide practice they believe keeps the Wraith at bay. Air Date : 13th-Aug-2004  Read More

Season 1 Episode 7 - Poisoning the Well

The team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding. Air Date : 20th-Aug-2004  Read More

Season 1 Episode 8 - Underground

Efforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives. Air Date : 27th-Aug-2004  Read More

Season 1 Episode 9 - Home

McKay's efforts to harness the energy of an alien planet's atmosphere allows for a return trip to Earth -- but the team may not be able to return to Atlantis. Air Date : 10th-Sep-2004  Read More

Season 1 Episode 10 - The Storm (1)

When a massive storm threatens the city, Atlantis is evacuated -- only to be taken over by the team's newest enemy. Air Date : 17th-Sep-2004  Read More

Season 1 Episode 11 - The Eye (2)

Major Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and have taken Weir and McKay hostage. Air Date : 8th-Nov-2004  Read More

Season 1 Episode 12 - The Defiant One

Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor. Air Date : 15th-Nov-2004  Read More

Season 1 Episode 13 - Hot Zone

Nearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city. Air Date : 22nd-Nov-2004  Read More

Season 1 Episode 14 - Sanctuary

The team finds a paradise world that would make an ideal sanctuary for those fleeing from the Wraith, but the local inhabitants believe their goddess will not permit it. Air Date : 29th-Nov-2004  Read More

Season 1 Episode 15 - Before I Sleep

A woman is found in suspended animation in Atlantis, and the team is shocked to see that it is Dr. Weir herself, who tells them of her trip 10,000 years into the city's past. Air Date : 6th-Dec-2004  Read More

Season 1 Episode 16 - The Brotherhood

The team searches for a valuable Zero Point Module rumored to be hidden on the planet Dagan -- but their new allies have motives of their own. Air Date : 3rd-Jan-2005  Read More

Season 1 Episode 17 - Letters From Pegasus

With a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones. Air Date : 10th-Jan-2005  Read More

Season 1 Episode 18 - The Gift

Plagued by terrifying nightmares, Teyla begins to recall a time when she and her father were captured by the Wraith and subjected to disturbing experiments. Air Date : 17th-Jan-2005  Read More

Season 1 Episode 19 - The Siege (1)

With a group of Wraith hive ships on the way to Atlantis, the team searches for a place to flee and a way to destroy the city. McKay leads a team to try and activate the Ancients' orbital weapons platform. Air Date : 24th-Jan-2005  Read More

Season 1 Episode 20 - The Siege (2)

All hope seems lost, until Colonel Everett arrives suddenly from Earth. He is determined to defend the city until the arrival of a ZPM, brought by a new ship. Air Date : 31st-Jan-2005  Read More